condition mean min max ZT0-3 0.04001393775 0.0 0.0800278755 ZT4-7 0.04932980325 0.0 0.0986596065 ZT8-11 0.045322751999999994 0.023037883999999998 0.06760762 ZT12-15 0.0708162865 0.0 0.141632573 ZT16-19 0.0 0.0 0.0 ZT20-23 0.050662945 0.044592097000000004 0.056733793000000005